DDR Single/Dual Channel 400MHz RAM Memory Kits

Double data rate is a type of SDRAM in which data is sent on both the rising and falling edges of clock cycles in a data burst. It is usually referred to as DDR as opposed to DDR SDRAM. DDR memory comes in various sizes as well as speeds

Tekspek An in-depth guide into tech: Gigabytes and Gibibytes System Buses & Bandwidth DC Ram DDR / DDR2